Invalid-bedstead.



No. 811,713. PATENTED FEB. 6, 1908.

L. LHRONDE.

INVALID BEDSTBAD.

LPPLIULTIOH FILED JULY 10, 1905,

Fig. 1

ill WAY 2' 4 m a M I II! Fig.2.

. c wuewtoz wmsoe'o Z01: 6, 67? Ma, 3? 9: V l 5 LOUIS J. GRONDE, OF CHICAGO, ILLINOIS.

INVALID-BEDSTEAD.

Specification of Letters Patent.

Patented Feb. 6, 1966.

Application filed July 19, 1905. Serial No. 269.084.

To all whom it may concern:

. Be it known that I, LOUIS J. GRONDE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Invalid-Bedsteads; and I do declare the followin to be a full, clear, and exact description 0 the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in invalid-bedsteads.

The object of the invention is to provide a bedstead of this character which may be quickly and easily adjusted to raise the occupant of the bed to a sitting posture or from a sitting posture to a reclining posture with the least possible discomfort to said occupant.

With the above and other objects 1n view the invention consists of certain novel featurcs of construction, combination and arrangement of parts, as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a bedstead constructed in accordance With the invention. Fig. 2 is a vertical cross-sectional view of the same. Fig. 3 is a detail perspective view of one of the rack-bars and the grooved guide-roller on the up or end of the same.

eferring more particularly to the drawings, 1 denotes the frame of the bedstead, which is supported upon suitable posts at the head and foot of the same. The frame 1 consists of longitudinally-disposed side bars 2, which are connected together at their ends by cross-bars 3. On the cross-bars 3 is supported a spring-mattress 4. Arranged over the head portion of the frame 1 and normally adapted to rest upon the spring-mattress 4 is a backpro or supporting-frame 5, on which is arran ed a suitable yielding covering 6, preferably of the same construction as the spring-mattress 4. The inner ends of the frame 5 are bent or curved downwardly on each side of the frame 1, said downwardlycurved ends being provided with eyes or apertures, through which and through alining apertures in the side bars 2 of the frame 1 are passed pivot-bolts '5", by which said prop-frame is ingedly connected to the bedframe 1.

Secured to the underside of the side bars 2 is a gear-supporting frame 8, said frame consisting of side bars 9, which incline downwardly from the head and foot ends of the which are slidably mounts side rails 2, forming a V-shaped construction. Secured to the side bars 9 of the gear-frame and the side bars 2 of the bed-frame are vertisally-disposed channeled ride-oars 10, in

d channeled rackbars 12. On the upper ends of said rackbars 12 are revolubly mounted grooved guide-wheels 13, adapted'to engagethe side bars of the prop-frame and to support said frame at an desired angle or elevation.

Journals in the side bars 9 of the gearframe is a transversely-disposed shaft 14,011 which is fixedly mounted spur gear-wheels 15, said wheels being adapted to engage the teeth of the rack-bars 12 and when said shaft is revolved to raise or lower said rack-bars, thereby raising or lowering the prop-frame. On one end of the shaft 14 is connected a crank handle 16, whereby said shaft and the gears 15 are revolved. In order to hold the gears 15 against a retrograde movement, a springcontrolled pawl 17 is provided, said pawl being pivotally connected to one of, the side bars 9 and arranged so that when the gearwheels are turned in one direction to raise the rack-bars the pawl will play loosely over the teeth of said gears, but which will engage the teeth and prevent an op osite movement of the gearwheels, thereby olding the parts in locked position and the prop-frame at the desired angle of inclination. To lower the rack bars and prop frame, the pawl 17 is manually released from engagement with the teeth of the gear-wheel.

By providing the grooved guide-rollers 13 the rop-frame 5 may be easily raised without lOl'tlIlg or causing the occupant of the bed any inconvenlence.

From the fore oing description, taken in connection with t 1e accompanyin drawings, the construction and operation 0 the invention will be readily understood without requiring a more extended explanation. l

Various changes in the form, roportlon, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a bedstead of the character described, the combination with a supporting-frame, of a back-prop frame hinged] connected to said supporting-fraine, a gearame arran ed below said supporting frame, vertical ydisposed guide-bars arranged on said supportmg and gear frames, rack-bars slidably mounted in said guide-frames, guide-rollers mounted on the up er end of said rack-bars, and means whereby said rack-bars are operated to raise and sup ort said rack-frames, and said back-prop arne, substantially as described.

2. In a bedstead of the character described, the combination With a supporting-frame, of a back-prop frame hingedl 7 connected to said supporting-frame, a gearrame arranged below said sup orting-frarne, vertieallydis posed channe ed guide bars arranged on said su porting and gear frames, rack-bars slidab y mounted in said channeled guide-bars, means formed on said rack-bars to retain the same in engagement with said rack bar frames, grooved guide rollers mounted on said rack-bars to engage the side bars of said 20 back-prop frame, a transversely(lisposed shaft ournaled in said ear-frame, gear- Wheels fixed on said sha 't to engage said racks, a pawl to engage said gear-Wheels and to hold the same a ainst retrograde move- 2 5 ment, and a crank-handle arranged on said shaft, substantiall as described.

In testimony w ereof I have hereunto set my hand in presence of two subscribing Witnesses.

LOUIS J. GRONDE. W'itnesses NOAH M. SPALDING, W. R. SPALDING. 

